Belt-fastener.



PATENTED JULY 28, 1908.

1?. M. LINDERMAN. BELT FASTENER.

APPLICATION FILED MAR. 7, 190a.

Invent-0 72' it to other is attended with bending UNITED STATES FRANK M; LIINDERMAN,

PATENT OFFICE.

or CHICAGO, ILLINOIS.

BELT-'FAs'r NER.

Specification of Iietters Patent.

Patented July 28, 1908.

Application filed March 7, 1998. 7 Serial No. 419,693.

To all whom/it may concern:

Be it known that I, FRANK M. LINDER- MAN, a citizen ,of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Belt-Fasteners, of which be joined, and which are turned over and clenched into the inner surface of the belt, or that which contacts with the pulleys, to be flush therewith, thus without protruding, to render it smooth. Sometimes these hooks are provided in united series to adapt a plurality to be driven into the material at one opleration, such form of the device affording w at is known in the art ,as belt-lacing. The objection to this form of the fastener, whether single or multiple, is that in driving"- penetrate the material with the points by-hammering against the aforesaid head, the points tend to spread apart with the effect of separating the ends of the material to be joined so that the matter of bringing these ends into proper abutting relation by bending the protruding points toward each great 'difficulty, the generally terminatingin an imperfect Thisdifficulty is attributableto the of the head 'under the blows of driving, whereby the points are forced outwardly. j

effort result.

My improvement entirely overcomes the objection referred to by the construction illustrated in the accompanyingdrawing, in which 1 Figure 1 is a perspective view of the single form of my fastener exaggerated in the mat' ter of dimensions, and Fig. 2, a similar view of the multiple form of the same consisting of a plurality of fastener-members composing an integral structure.

The fastener 3, whether in the single or multiple form shown, comprises, as usual, a

,j pr of other sharp-pointed form. "tial feature of improvement consists inthe pression of the head .to extend in'a plane head 4 and prongs 5, 5 extending from it,

either, like those shown, tapering to a point be ow that of the shoulders 6 which oin the points to the head and which arepreferably, though not necessarily, of the rounded shape re resented. By thus depressing the head it ies beneath the impact of a hammer used for driving the fastener, the blows of which can only applied to the higher shoulders 6, therebyw'rivlng the points, as it were, independently of each other, even though the hammer strikes them simultaneously,- as

The essendirectly as a nail is driven by impact against its head, and of necessity without bending the head'4, so that the described tendency to spreading apart of the points, as the effect of said bending, is avoided. With the points fully driven through the material, they are bent toward each other and clenched into the adjacent surface 'of the belt-material. This operation is commonly performed by laying the jointed sections in position to cause the points to project upwardly, when they are ent toward each other and pounded or pressed down against and into the surface of the material to extend flush therewith. In this operation, with my improved construction of the fastener, the shoulders 6 become reduced, by depression to occupy the same plane as the head 4, and the resultant straightening .or flattening of the shoulders lengthens accordingly the prongs 5, whereby in bending. they hug the end-portions of the belt-material closerand closer "at the bends and thus tend to tighten the abutment between the joint-forming ends. This last described funotion of my improved construction thus adds to it the advantage of strengthening the joint in the belt.

What I claim as new and desire to secure by Letters Patent is- 1. A belt-fastener comprising a head extending-in a plane and p'rovided'at its ends with driving shoulders, and points projecting from the shoulders, the plane of the head being below the shoulders,

2. A belt-fastener comprising a head extending in a plane and provided at its ends with rounded driving shoiilders, and points I driving shoulders, and points projecting projecting from the shoulders; the plane of ["fromthe shoulders, the plane Ofl3l16l16&dl)G-.

the head being below the shoulders. v J ing below the shoulders.

3. A belt-fastener consisting of a plurality} FRANK M. LINDERMAN. v 5 of fasteners forming an integral structure, In'presence 0f',

each member comprising ahead extending RALPH SCHAEFER in a plane and provided "at its ends'with W. F. JONES." 

